Movable barrier operator with an obstacle detector

Details Movable barrier operator with an obstacle detector Movable barrier operator with an obstacle detector

G - Physics

01

D

G01D 5/32 (2006.01) E01F 13/04 (2006.01) E05F 15/00 (2006.01) E05F 15/20 (2006.01) G01B 11/14 (2006.01) G01P 13/00 (2006.01) G06K 9/00 (2006.01)

Patent

CA 2499764

A movable barrier operator comprises a pattern generator for projecting a beam across the barrier path; a CCD camera for recording a pattern produced by projected beam across the barrier path; and a controller for sensing when the pattern produced by projected beam is changed by presence of an obstacle, and generating an obstacle detection signal in response thereto. The movable barrier operator is responsive to the obstacle detection signal to control the barrier drive.

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